NJT1946A Datasheet | Nisshinbo

DESCRIPTION NJT1946A is designed for the front end of marine radar system. It features a small size and a light weight operable at any frequency between 9.345GHz and 9.475GHz. This front end module consists of HEMT low noise amplifier, Image rejection mixer, Local VCO with buffer amplifier. A HEMT monitoring circuit is included in the design to monitor HEMT drain current. The stability of the local VCO frequency by the input RF power is increased effectively by the buffer amplifier which is located between image rejection mixer and local VCO. - ELECTRICAL CHARACTERISTICS < at 25 ºC > PARAMETERS Operating voltage Operating current Tuning Voltage Local frequency Noise figure Conversion gain 1d B Gain pression point RF single pulse burnout RF repetitive pulse burnout (Note1) VT= 4V VT=24V (RF Port) (Note2) (Note3) MINIMUM 4.8 10.5 9.56 4.0 -10.0 - TYPICAL 5.0 70 12.0 2.5 6.0 -8.0 - Note1: f LO=9.47GHz Note2: f RF=9.41GHz, Pd=10nsec Note3: f RF=9.41GHz, Pd=1µsec, Duty=0.001 MAXIMUM 5.2 90 13.5 9.38 3.5 8.0 600 400 UNITS V m A V GHz GHz d B d B d Bm m W m W - BLOCK DIAGRAM ＊Above Specifications are subject to change without notice. Reference No.: DS-T1946A Rev.: 04E Sheet: 2 - OUTLINE (Dimensions are expressed in “mm”.) ＊Above Specifications are subject to change without notice. Reference No.: DS-T1946A Rev.: 04E Sheet:...